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	// chosen {
	// 	#address-cells = <1>;
	// 	#size-cells = <1>;
	// 	ranges;

	// 	framebuffer-lcd {
	// 		compatible = "allwinner,simple-framebuffer",
	// 			     "simple-framebuffer";
	// 		allwinner,pipeline = "mixer0-lcd0";
	// 		clocks = <&display_clocks CLK_MIXER0>,
	// 			 <&ccu CLK_TCON0>;
	// 		status = "disabled";
	// 	};
	// };

	chosen {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		simplefb_lcd: framebuffer@0 {
			compatible = "allwinner,simple-framebuffer",
				     "simple-framebuffer";
			allwinner,pipeline = "de0-lcd0";
			clocks = <&ccu CLK_BUS_TCON0>, <&display_clocks 0>,
				 <&display_clocks 6>, <&ccu CLK_TCON0>;
			status = "disabled";
		};
	};

			/omit-if-no-ref/
			csi1_mclk_pin: csi1-mclk-pin {
				pins = "PE1";
				function = "csi";
			};

            //增加//////////////////////////////////
			csi1_clk: csi1-clk@0 {
				pins = "PE0","PE2","PE3";
				bias-disable;
				function = "csi";
			};
			csi1_8bit: csi1-8bit@0 {
				pins 	 = "PE6","PE7","PE8","PE9","PE10","PE11","PE12","PE13","PE14","PE15";
				bias-disable;
				function = "csi";
			};

			csi1_mclk: csi1-mclk@0 {
				pins = "PE1";
				bias-disable;
				function = "csi";
			};
            //////////////////////////////////////

			i2c0_pins: i2c0-pins {
				pins = "PB6", "PB7";
				function = "i2c0";
			};

            /omit-if-no-ref/
			i2c1_pe_pins: i2c1-pe-pins {
				pins = "PE21", "PE22";
				function = "i2c1";
			};

            //增加//////////////////////////////////
			i2c1_pins: i2c1-pins {
				pins = "PE21", "PE22";
				function = "i2c1";
			};
            //////////////////////////////////////

        uart2: serial@1c28800 {
			compatible = "snps,dw-apb-uart";
			reg = <0x01c28800 0x400>;
			interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
			reg-shift = <2>;
			reg-io-width = <4>;
			clocks = <&ccu CLK_BUS_UART2>;
			resets = <&ccu RST_BUS_UART2>;
			pinctrl-0 = <&uart2_pins>;
			pinctrl-names = "default";
			status = "disabled";
		};

        //增加//////////////////////////////////
		dma: dma-controller@01c02000 {
			compatible = "allwinner,sun8i-v3s-dma";
			reg = <0x01c02000 0x1000>;
			interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
			clocks = <&ccu CLK_BUS_DMA>;
			resets = <&ccu RST_BUS_DMA>;
			#dma-cells = <1>;
		};
		codec_analog: codec-analog@01c23000 {
			compatible = "allwinner,sun8i-v3s-codec-analog";
			reg = <0x01c23000 0x4>;
		};
		codec: codec@01c22c00 {
			#sound-dai-cells = <0>;
			compatible = "allwinner,sun8i-v3s-codec";
			reg = <0x01c22c00 0x400>;
			interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
			clocks = <&ccu CLK_BUS_CODEC>, <&ccu CLK_AC_DIG>;
			clock-names = "apb", "codec";
			resets = <&ccu RST_BUS_CODEC>;
			dmas = <&dma 15>, <&dma 15>;
			dma-names = "rx", "tx";
			allwinner,codec-analog-controls = <&codec_analog>;
			status = "disabled";
		};
        //////////////////////////////////////

        csi1: camera@1cb4000 {
			compatible = "allwinner,sun8i-v3s-csi";
			reg = <0x01cb4000 0x3000>;
			interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
			clocks = <&ccu CLK_BUS_CSI>,
				 <&ccu CLK_CSI1_SCLK>,
				 <&ccu CLK_DRAM_CSI>;
			clock-names = "bus", "mod", "ram";
			resets = <&ccu RST_BUS_CSI>;
			status = "okay";  // "disabled"修改为"okay"
		};

&mmc1 {
	broken-cd;
	bus-width = <4>;
	vmmc-supply = <&reg_vcc3v3>;
	status = "okay";
};
//增加----------------------------------------------------------------
&csi1 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&csi1_clk &csi1_8bit>;

	port {
		csi1_ep: endpoint {
		remote-endpoint = <&ov2640_0>;
		hsync-active = <0>;
		vsync-active = <0>;
		bus-width = <10>;
	    	pclk-sample = <1>;
		};
	};

 };
&i2c1 {
    	pinctrl-0 = <&i2c1_pins>;
		pinctrl-names = "default";
		clock-frequency = <400000>;
		status = "okay";
	
	ov2640: camera@30 {
		compatible = "ovti,ov2640";
		reg = <0x30>;
		pinctrl-names = "default";
		pinctrl-0 = <&csi1_mclk_pin>;
		clocks = <&ccu CLK_CSI1_MCLK>;
		clock-names = "xvclk";
		assigned-clocks = <&ccu CLK_CSI1_MCLK>;
		assigned-clock-rates = <24000000>;
		port {
			ov2640_0: endpoint {
				remote-endpoint = <&csi1_ep>;
				bus-width = <10>;
			};
		};
	};
};
&codec {
	allwinner,audio-routing =
		"Headphone", "HP",
		"Headphone", "HPCOM",
		"MIC1", "Mic",
		"Mic",  "HBIAS";
	status = "okay";
};
//----------------------------------------------------------------

> Device Drivers > Multimedia support > Media device types
    [ *] Platform-specific devices

> Device Drivers > Multimedia support > Media drivers > V4L platform devices
    <*>   Video Multiplexer
    <*>   Allwinner V3s Camera Sensor Interface driver

> Device Drivers > Multimedia support > Media drivers > Memory-to-memory multimedia devices
    <*>   Deinterlace
    <*>   Allwinner Deinterlace
    <*>   Allwinner DE2 rotation driver 

> Device Drivers > Multimedia support > Media ancillary drivers > Camera sensor devices
    {*} OmniVision OV2640 sensor support 
    <*> OmniVision OV7670 sensor support